The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 25, 2004

Filed:

Mar. 05, 2002
Applicant:
Inventors:

Michael J. Williams, Glastonbury, CT (US);

Thomas M. Tornatore, Enfield, CT (US);

Leon P. Janik, Suffield, CT (US);

Assignee:

Stanadyne Corporation, Windsor, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 3/530 ; B01D 2/708 ;
U.S. Cl.
CPC ...
B01D 3/530 ; B01D 2/708 ;
Abstract

A key track system for a filter base module comprises a ring-shaped fixture including a series of perforations, each perforation at least partially defining a parting line along which a tab may be selectively removed. The key track fixture is incorporated into the filter base module to define the periphery of an entryway to a cartridge-receiving receptacle in the header portion of a base module. In some embodiments, the key track fixture is a molded ring-like component with pre-key selected angularly spaced key slots. Base modules including the key track system may be efficiently configured to accept the key pattern of a filter cartridge compatible with the filter system in which the base module will be used.


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